Stair cushion



Dec. 3o, 1941.

s. DOMINUS 2,268,021

sTAI'R cUsHIoN Filed June '7, 1940 vlag?? l' si@ ,Wm

INVENTORI 1 SAMUEL. DOMINUS BULMMM;

ATTORN EY Patented Dec. 30, 1941 UNITED STATES EATET OFFICE SamuelDominus, Brooklyn, Y. Application June 7, 1940, serial No. 339,350

2 claims. (C1. 154-56) f My invention relates to improvements in staircushions, and it consists in the novel features which are hereinafterdescribed.

One of the objects of my invention is to reinforce the backing of thecarpet covering of a stair cushion at the points of stress thereon nearthe metal frame, whereby to preventl the unravelling of the backing ofthe said car-pet covering near the said metal frame of the staircushion.

Another object of my invention is to protect from abrasion therstitching of the carpet covering of the Istair cushion to the cardboardbase thereof, whichis hereinafter described.

A further object of my invention is to reinforce thebacking of thecarpet covering of a stair cushion opposite the points of wear on thetop of the said carpet covering by means of a sheet of lining, which ishereinafter described.

Another object of my invention is to reduce the stress on the threads ofthe stitching of the said covering to the said base by transferring thestress or part thereof to the said lining, which is packed tightly intothe metalframe with the said covering and the vsaid base thereof.

Another object of my invention is to make possible the use of looselywoven carpet for stair cushion coverings; heretofore only relativelyclosely woven carpet could be used for that purpose.

A still other object of my invention is to protect the edges of thecardboard base and to interpo'se a layer of fabric or other packingbetween the said cardboard base with the threads of the said stitchingthereon and the metal frame.

A further object of my invention is to make I my above improved staircushion compact, simple, durable and inexpensive.

Other objects and advantages will hereinafter appear.

I attain these objects by the stair cushion illustrated in theaccompanying drawing or by any mechanical equivalent or obviousmodification of the same.

In the drawing Fig. l is a view in end elevation of the tread and riserof my improved stair cushion, which are shown in their relativepositions.

Fig. 2 is a plan View of the same; and Fig. 3 is a front view thereof,showing the positions of the tread and riser with relation to eachother.

Fig. 4 is a fragmentary View of the tread of my improved stair cushion,in section on the line 4-4 of Fig. 2, drawn to a larger scale than Figs.1, 2 and 3; and

Fig. 5 is a fragmentary sectional View of the riser of my improved staircushion on the line 5-5 of Fig. 3, also drawn to a larger scale thanFigs. 1, 2 and 3.

Similar numerals refer to similarl parts throughout'the several views.'

The tread I0 of my improved stair cushion is shown in Fig. 4 ascomprising a carpet top covering II--IZ having thereon a fabric backingIl and a nap or pile I2; a base I3 of cardboard or any other suitablematerial forms the bottom of the tread of my stair cushion.

A reinforcing lining I4 of -canvas lor any other suitable material iscemented on or otherwise secured'to the backing' II of the top coveringII-I2; the lining I4 extends beyond the front and rear edges of the topcovering II-I2; and the extension I5 thereofv is folded over the frontand rear edges of the base I3, thereby forming an assembly 2|, after thebase I3 has been secured to the front and rear edges of the top coveringII--I2 .by means of zig-zag stitches, as shown in dotted lines at 20 inFig. 2.

The extension I5 is preferably not stitched to the base I3.

The space between the top covering II--I2 with the lining I4 thereon andthe base I3 is shown in Fig. 4 as stuffed with resilient pads I6, I'Iand I8,vwhich may be made of felt or any other suitable material; andthe edges of the assembly 2| are encompassed by a metal frame I9 whichis secured thereto by folding the metal blank of the saidv frame I9 overthe said assembly ZI and pressing itthereunto.

The lateral edges yof the' top covering II,-l2,

with the lining I4 thereon, and the base I3 are also secured to eachother by stitching before the metal blank of the frame I9 is foldedthereover.

'I'he lining I4, instead of being cemented to the backing II of the topcovering II-I2, may also be secured thereto by sewing, or it may bevulcanized thereto or woven thereinto; the lining I4 may also be of anyexible material, such as rubber or any fabric other than canvas.

By cementing or vulcanizing the lining I4 to the backing II of the topcovering II-I2 or by weaving the lining I4 into the backing II of thetop covering I I-I 2, the lining I4 is thereby integrated with thebacking Il of the top covering II-I2; to Wit; it becomes one piece withit.

The lining I4 and the backing II of the top covering II-I2 cannot slideor -creep on each other, or have any relative motion whatsoevertherebetween.

The lining I4 reinforces the covering II-l2 r at the points of stressthereon, and prevents unravelling of the backing II at the front andrear edges of the latter near the metal frame I9.

It Will be understood that there is `a relative motion or creepingbetween the frame I9 and the edges of the cushion which it encloses,particularly at the front and rear edges of the cushion when the latteris being trod upon; the cushion being reversible, the rear edge becomesthe front edge after the cushion is reversed in position; the extensionl reinforces these edges.

'I'he extension I5 protects the edges of the base I3 and prevents theabrasion of the stitching 20 of the top covering II-I2 to the base I3 atthe underside of the base I3.

The stitching at the top of the top covering I2 is shielded by the napof the carpet of which said covering is made and the stitching 20 isthereby protected against abrasion by the frame I9.

'I'he lining I4 also reinforces the backing of the top covering II-I2opposite the points of wear on the top of the said covering, and therebyprevents the formation of holes in the covering I I-I2.

The reinforcement I4 takes up some of the stress which is exerted on thethreads of the stitching 20.

The riser 36 of my improved stair cushion is shown in Fig. 5 ascomprising a carpet front covering 22-23 having thereon a fabric backing22 and a nap or pile 23; a base 24 of cardboard or any other suitablematerial forms the rear of the riser of my improved stair cushion; areinforcing lining 26 of canvas or any other suitable material iscemented on or otherwise secured to the backing 22 of the front covering22-23; the lining 26 extends beyond the top edge of the front covering22-23, and the extension is bent over the upper edge of the base 24after the latter is stitched to the upper edge of the front covering22-23 by means of zig-zag stitches, as shown in dotted lines at 20 inFig. 3, thereby forming anassembly 3I.

The extension 25 is preferably not stitched to the base 24.

The edges of the assembly 3I are encompassed by a metal frame 29 whichis secured thereto by folding the metal blank of the said frame 29 overthe said assembly 3| and pressing it thereunto.

The lateral edges of the covering 22-23 with the lining 26 thereon andthe base 24 are also secured to each other by stitching before the frame29 is folded thereover.

The lining 26 instead of being cemented to the backing 23 of the frontcovering 22-23, may also be secured thereto by sewing or it may bevulcanized thereto or woven thereinto; the lining 26 may also be of anyflexible material other than canvas.

The lining 26 reinforces the front covering 22-23 at the points ofstress thereon and prevents unravelling of the backing 22 at the upperedge of the latter near the metal frame 29.

Other advantages of the lining 26 and the eX- tension 25 thereof withrelation to the riser 30 are similar to the advantages of the lining I4and the extension I5 thereof with relation to the tread I0 of myimproved stair cushion.

A portion only of the lining I4 and the lining 26 may be used, ifdesired.

Other variations are possible, and parts of my invention may be usedwithout other parts.

I do not therefore restrict myself to the details as shown in thedrawing.

Whenever in the claims hereinafter the term integrated with is used itis meant to include the terms of cemented to, vulcanized to, and Woveninto.

I claim as my invention and desire to secure by Letters Patent:

l. In a stair cushion a carpet top covering and a. base stitchedtheretoat the edges thereof, a metal frame encompassing the edges of thecushion and pressed thereunto, said covering having thereon a fabricbacking, a lining of flexible material secured to said backing and anextension on said lining folded over the front edge of the base, withthe covering stitched thereto, interiorly of said frame and exteriorlyof the stitching, thereby protecting the stitching at the underside ofthe base from abrasion'by the frame.

2. In a stair cushion a carpet top covering and a base stitched theretoat the edges thereof, a metal frame encompassing thev edges of thecushion and pressed thereunto, said covering having thereon a fabricbacking, a lining of flexible material secured to said backing and anextension on said lining folded over each of the front and rear edges ofthe base, with the covering stitched thereto, interiorly of said frameand exteriorly of the stitching, thereby protecting the stitching at theunderside of the base from abrasion by the frame.

SAMUEL DOMINUS.

